baber/WOPTO huggingface dataset:
Patent EP-0390054-A2 (EP)
Inventor: NEWBERG IRWIN L
IPC: G02B6/00
Filed: 1990-03-27
Abstract: A variable delay line (10) has a first optical fiber (12) to transmit an optical signal and a plurality of second optical fibers (14) adapted to receive simultaneously the optical signal from the first fiber (12). Each second fiber (14) has a predetermined length (L i ), the length (L i ) of each second fiber (14) being different from each other second fiber (14). The predetermined length (L i ) determines the propagation delay of the optical signal along each second fiber (14). An opto-electronic switch (20) is made responsive to the optical energy on a selected one of the second fibers (14). The switch (20) detects the delayed optical energy and couples the delayed optical energy on an electrical analog thereof to a device. The selected second fiber (14) is chosen for the propagation delay associated therewith.
Patent EP-0399390-A2 (EP)
Inventor: WEGMANN URS
IPC: H01J37/21
Filed: 1990-05-18
Abstract: A process and a system are disclosed for controlling the focusing of a beam of monopolar charged particles which is used, for example, to vaporize substances in vacuum coating systems. The beam (S) has a cross-sectional area (Q) in a plane (E1) transverse to the axis of the beam. Perpendicular to plane (E1) there is a plane (E2), the surface normal (R) to which indicates the direction in which the change in the cross-sectional area (Q) is to occur. According to the invention, flux density fields (B1, B2) are applied, which are parallel on opposite sides to plane (E2) but have opposing directions. As a result, the change in the focusing of the beam has essentially no effect on any deflection of the beam; that is, it is possible to control the focusing without exerting any significant effect on the deflection.
Patent EP-0418513-A2 (EP)
Inventor: MERATTI GIANATTILIO
IPC: B42B2/02
Filed: 1990-07-26
Abstract: A booksewing thread stitcher machine (1), affording an increased production rate and quieter operation, comprises a frame structure (5), a sewing station (11), a moving saddle (10) mounted on a movable mechanism (13) adapted to be displaced angularly around a pivot pin (14), drives (15) for driving the movable mechanism (13) and saddle (10) toward and away from the sewing station (11), and a box-type body (16) attached to the frame structure (5) and having said pivot pin (14) passed therethrough, within said box-type body (16) there being housed said drives (15) in oil bath.
Patent EP-0415227-A2 (EP)
Inventor: HERNANDEZ FRANZISCO
IPC: H05G1/54
Filed: 1990-08-20
Abstract: The generation of excessive electron radiation is prevented in an apparatus which comprises an accelerator means for generating and accelerating electrons. The accelerator comprises an electron injector for emitting injector pulses, an electron gun for receiving the injector pulses, a waveguide receiving electrons from the electron gun and a high frequency source for supplying RF signals for the generation of an electric field for accelerating the electrons in the waveguide and generating the electron beam which has a predetermined energy level according to the amplitudes of the injector pulses. A sensing means senses the amplitudes of the injector pulses and generates sensing signals. The amplitudes of the sensing signals are ccmpared with predetermined reference voltage values and the generation of the electron beam is prevented if the amplitudes of the sensing signals exceed the predetermined reference voltage value.
Patent EP-0414246-A2 (EP)
Inventor: KNIPPSCHILD MICHAEL
IPC: G09B9/00
Filed: 1990-08-23
Abstract: The invention relates to a simulation device for stationary and mobile radiotelephone networks. It contains a control position (2), which is equipped with at least one earphone/microphone headset (9). At least one training position (1) is provided, which is also equipped with at least one earphone/microphone headset (9). Information transmission devices (8) are provided to transmit information between the training positions (1) and the control position (2). Monitoring devices (4, 5, 14) are connected to the information transmission devices (8) to monitor the information flow through the information transmission devices (8). <IMAGE>
Patent EP-0418928-A2 (EP)
Inventor: IWASAKI OSAMU
IPC: G02B21/00
Filed: 1990-09-21
Abstract: A confocal scanning microscope comprises a sample supporting member on which a sample is supported, and a light source which produces a light beam. A light projecting device forms an image of the light beam as a small light spot on the sample. A light receiving device condenses the light beam, which has been radiated out of the sample, and forms an image of the condensed light beam as point image. A photodetector detects the point image. A movable member supports the light projecting device and the light receiving device. A main scanning device reciprocally moves the movable member such that the light spot scans the sample in main scanning directions. A sub-­scanning device moves the sample supporting member with respect to the movable member in sub-scanning directions, which are normal to the main scanning directions, and at a speed lower than the speed at which the light spot scans the sample in the main scanning directions, whereby the sample is scanned with the light spot in the sub-scanning directions.
Patent EP-0426201-A2 (EP)
Inventor: SATOSHI TAKAMI C O ASAHI KOGAK
IPC: H05B41/32
Filed: 1987-12-09
Abstract: A flash device (10) for a photographic camera (11) comprising an ordinary flash mechanism, an improved flash mechanism including a part of said ordinary flash mechanism, an operation mode switching means which selectively switches the operation mode of said flash mechanisms and a control terminal (Co) which is provided in addition to terminals (Xo,Ro,Qo) electrically connecting said ordinary flash mechanism to said photographic camera (11), said control (Co) terminal electrically coupling said operation mode switching means to the camera (11) and switching of the operation mode of said ordinary flash mechanism and said improved flash mechanism being effected by said operation mode switching means in response to an input signal to said control terminal (Co).
Patent EP-0380313-A2 (EP)
Inventor: ADCOCK MARK WILLIAM C O EASTMA
IPC: G01N27/447
Filed: 1990-01-23
Abstract: Disclosed herein are apparatus and method for electroblotting or electroelution, wherein a field is inverted repeatedly over time, until an electrophoretically separated DNA, RNA or protein is forced out of the gel (G) and to an appropriate receiver (M) by the net field so produced.
Patent EP-0384746-A2 (EP)
Inventor: MATSUMOTO HIROYUKI
IPC: G11B11/105
Filed: 1990-02-21
Abstract: An over write capable magnetooptical recording medium comprises a substrate and magnetic layers including first and second layers each having a perpendicular magnetic anisotropy. In the medium, a product of a saturated magnetic moment and a coercivity of the first layer is larger than that of the second layer, and non-magnetic element is doped in the first layer.
Patent EP-0391640-A2 (EP)
Inventor: NAKASUGI MIKIO
IPC: F16C17/08
Filed: 1990-04-02
Abstract: The present invention provides a hydrodynamic bearing system comprising: a shaft (1); a sleeve (2) rotatably fitted on the shaft; a thrust plate (33) fixed to the sleeve and acting to support one end of the shaft in a thrust direction; first shallow grooves (10) formed in at least one of fitted surfaces of the shaft and of the sleeve, to support one of the shaft and the sleeve with respect to the other in a radial direction; a second shallow groove (11) formed in at least one of the shaft and the thrust plate, to support one of the shaft and the thrust plate with respect to the other in a thrust direction; and wherein, the thrust plate is made of material including resin material as a main component and has an outside periphery portion having a thickness thicker than that of an inside periphery portion thereof.
Patent EP-0411764-A2 (EP)
Inventor: DINTEMAN BRYAN J
IPC: H03B28/00
Filed: 1990-06-27
Abstract: An arbitrary waveform generator using packet data words to represent segments of a desired complex waveform includes a variable clock. Each packet data word contains a clock control word that is used to control the variable clock frequency so that the duration of each segment is adjusted to produce the desired complex waveform.
Patent EP-0409522-A2 (EP)
Inventor: NOHL ANDRE
IPC: G01N1/00
Filed: 1990-07-16
Abstract: A conventional injection valve, such as used in high performance liquid chromatography apparatus, having six ports (1 - 6) and three channels (64A,64B,64C;82A,82B,82C) for connecting the ports in two different positions, is modified so that one (64A;82A) of the channels is longer than the other two. In this way, when the valve is switched to the load position, one of the ports is always connected to the channel prior to the other port being connected. This improvement makes the valve more accurate and reduces undesirable mixing of sample and mobile phase in the valve when injecting small quantities of sample.
Patent EP-0392947-A2 (EP)
Inventor: CLOUET GILBERT
IPC: C08G77/42
Filed: 1990-04-11
Abstract: This invention relates to a block copolymer of polydiorganosiloxane and thiuram disulphide of formula : <IMAGE> prepared by reaction of the appropriate  alpha , omega -(amino)diorganopolysiloxane with CS2 in the presence of a tertiary amine and an oxidising agent such as I2. Use of the copolymer of formula (I) as a "polyiniferter", that is to say as a free radical initiator, transfer agent and chain blocking agent during the radical polymerisation of vinyl monomers such as acrylate and styrene monomers, with the objective of obtaining a polydiorganosiloxane/polyvinyl block copolymer.
Patent EP-0447855-A2 (EP)
Inventor: LYDZINSKI SUSAN
IPC: C09J7/02
Filed: 1991-02-28
Abstract: Improved pressure sensitive adhesive compositions based on SIS (styrene-isoprene-styrene) block polymers are described which are particularly adapted for use on vinyl substrates by radiation initiated crosslinking. The crosslinked adhesives provide practical advantages in bonding plasticized PVC articles and films.
Patent EP-0447957-A2 (EP)
Title: Compact-Leuchtstofflampe
Inventor: HOLZER WALTER
IPC: H01R33/08
Filed: 1991-03-14
Abstract: Eine Compact-Leuchtstofflampe besteht aus einem Leuchtkörper mit einer oder mehreren Leuchtröhren (2) und einem als getrennte Einheit aufgebauten, elektronischen Vorschaltgerät (28), welches in Art eines Adapters mit dem Leuchtkörper über Steckverbindungen (30,32) elektrisch und mechanisch verbindbar ist. Um eine möglichst kleine Baulänge der Compact-Leuchtstofflampe zu erhalten ist vorgesehen, daß die Steckverbindung zwischen dem Leuchtkörper und dem Vorschaltgerät (28) sich in axialer Richtung mit der Compact-Leuchtstofflampe mindestens teilweise in den vom Leuchtkörper umschlossenen Raum hinein erstreckt. <IMAGE>
Patent EP-0457049-A2 (EP)
Inventor: NISHIBE TOHRU
IPC: H01L21/306
Filed: 1991-04-18
Abstract: The present invention provides a dry etching method, having the steps of introducing a mixed gas consisting of a reactive gas and an inert gas into a plasma chamber (30) for generating a plasma, with the partial pressure of each of these gas components being controlled, exciting the mixed gas within the plasma chamber (30) so as to generate ionized particles and excited particles having high reactivity, withdrawing the particles generated in the plasma chamber (30) into a sample chamber (20) having a compound semiconductor substrate (22) housed therein, and physically and chemically etching the compound semiconductor substrate with the particles.
Patent EP-0459238-A2 (EP)
Inventor: MACHULE LOTHAR
IPC: B29C65/04
Filed: 1991-05-16
Abstract: Es wird ein Verfahren zum Verschweißen wenigstens eines Bereichs einer Auflagefolie (16) mit einer Aufnahmefläche einer Trägerschicht (14) mittels HF-Energie beschrieben. Bei dem Verfahren wird auf der von der Aufnahmefläche der Trägerschicht (14) abgewandten Fläche eine Folie (12) aus elektrisch leitendem Material angebracht. Die Auflagefolie (16) wird zumindest auf einen Teil der Aufnahmefläche der Trägerschicht (14) gelegt. Auf die Auflagefolie (16) wird in den mit der Trägerschicht (14) zu verschweißenden Bereich eine HF-Elektrode (18, 20) aufgesetzt, und auf einen nicht mit der Trägerschicht (14) zu verschweißenden Bereich der Auflagefolie (16) oder auf einen nicht von der Auflagefolie (16) bedeckten Teil der Auflagefolie wird eine Masseelektrode (22) aufgelegt, deren Fläche größer als die der HF-Elektrode (18, 20) ist. Die HF-Energie wird dann eingeschaltet, während die HF-Elektrode (18, 20) mit Druck gegen die Auflagefolie (16) gehalten wird. <IMAGE>
Patent EP-0466167-A2 (EP)
Inventor: NISKANEN TOIVO
IPC: F04D29/42
Filed: 1991-07-12
Abstract: The present invention discloses a method and a centrifugal pump for pumping fiber suspensions of the pulp and paper industry in which the fiber suspension is caused to flow into a centrifugal pump housing in which space a vortex flow is created to prevent the suspension from forming a strong fiber network and from causing blockage of the system. 
     The centrifugal pump includes a housing provided with one inlet (22) and at least two non-symmetrical outlets (92, 94), at least one of the outlets being preferably provided with a means for regulating the flow through the outlet. The centrifugal pump further includes an impeller/rotor (78, 80) for moving the suspension through the several outlets (92, 94) towards further processing devices.
Patent EP-0483530-A2 (EP)
Inventor: WICHMANN GUENTER
IPC: H04N5/217
Filed: 1991-09-30
Abstract: Method for harmonising offset voltages and different responsivities in an electrooptical linear or mosaic detector; in addition, the aim is to remove or reduce the aliasing phenomenon. For this purpose, at least two detectors (1; 2) are exposed in each case to radiation derived from the scene and as identical as possible and to a change in said radiation which is as identical as possible, by performing this exposure so rapidly in sequence that practically no change is possible in the radiation from the scene. The detector 1 is guided in this process from its neutral position 1' to the position 2', the neutral position of detector 2 and optionally to the position 5', while detector 2 is guided from position 2'' to 5'', and optionally to n'. The output voltages of these detectors are compensated or harmonised electrically. <IMAGE>
Patent EP-0492165-A2 (EP)
Inventor: BAIER GUNAR DR
IPC: G01M13/00
Filed: 1991-11-27
Abstract: The invention relates to a procedure and a device for testing a catalytic converter (7) to which the exhaust gas of spark-ignition engines (8) can be fed. To test the effectiveness of the catalytic converter (7), the constituents of the exhaust gas (8K) emerging from the catalytic converter (7) are determined. For this purpose, at least one hydrogen and/or carbon monoxide probe (2) and an oxygen probe (3) are provided. 
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Patent EP-0481570-A2 (EP)
Inventor: OOHASHI KEIJI
IPC: C03C25/106
Filed: 1989-07-25
Abstract: An optical fiber coated with inner and outer layers of carbon in which the inner carbon coating layer is formed over the uncoated surface of the optical fiber and the outer carbon coating layer is formed over the inner coating layer.An apparatus for producing the above mentioned carbon-coated optical fiber.
Patent EP-0438205-A2 (EP)
Inventor: SCHROEDER HERMANN DR-ING
IPC: B21D3/08
Filed: 1991-01-10
Abstract: The invention relates to a method for straightening the ends of elongated workpieces, in particular tubes, in which certain portions of the workpiece are deformed to beyond the yield point by applying external forces. In order to specify an automatic method and an apparatus for straightening the ends of elongated workpieces, by means of which it is possible to straighten the end of a workpiece in a specific way, even one of varying cross-section, in a simple manner while the workpiece is stationary, it is proposed that, with the workpiece stationary, at least one selected cross-section in the end region be subjected to rising and falling reverse bending stress, a predetermined maximum bend running one or more times around the axis of the workpiece. …<IMAGE>…
Patent EP-0437323-A2 (EP)
Inventor: INANAGA KIYOFUMI C O PATENTS D
IPC: H04R1/10
Filed: 1991-01-04
Abstract: A hearing aid is disclosed in which outside sound collected by a microphone (3) is amplified and radiated from an earphone unit (2) so as to be conducted to the user's external auditory meatus (A). An acoustic tube (1) is of an inside diameter (W) approximately equal to that (Wo) of the user's external auditory meatus (A) and has one end (1 a ) provided as a section for attachment to the user's auricle (D) and the other end (1 b ) arranged as a reflectionless terminal. The earphone unit (2) is mounted on the peripheral surface of the acoustic tube (1) with the sound radiating surface facing the inside of the tube (1).
Patent EP-0440335-A2 (EP)
Inventor: WOLOVITZ LIONEL BEREL
IPC: G10L19/06
Filed: 1991-01-08
Abstract: An apparatus for encoding speech includes circuits (2,9) which sample a speech signal and generate digital data representative of the signal. An encoder (10,11) connected to the sampling circuits encodes the digital data by linear predictive coding and generates parameters representing the speech signal. The parameters are transformed (12) to obtain sum and difference polynomials. The roots of the sum and difference polynomials are determined (13) producing a series of line spectrum data. A storage device (14,15) stores the line spectrum data. 
     In one example, the line spectrum data are quantised non-uniformly in the frequency domain and the roots of the polynomials are found by evaluating those polynomials at the quantisation frequencies only.
Patent EP-0437369-A2 (EP)
Inventor: TUNG HSIEN-HSIN
IPC: C07C227/42
Filed: 1991-01-10
Abstract: A process is disclosed for the formation and resolution of (S)-ibuprofen-(S)-lysine. The process employs preferential crystallization to separate a pair of diasteromeric salts, (S)-ibuprofen-(S)-lysine and (R)-ibuprofen-(S)-lysine.
Patent EP-0438262-A2 (EP)
Inventor: YAMAZAKI KATSUNORI
IPC: G02F1/133
Filed: 1991-01-15
Abstract: In a method of driving a liquid crystal panel comprising scanning electrodes on a substrate and signal electrodes on another substrate, between which substrates a liquid crystal layer is sandwiched, scanning electrode driving waveforms (a) consisting of selective and non-selective voltages are applied to the scanning electrodes of the liquid crystal panel. Lighting or non-lighting voltages (b and c) are applied to the signal electrodes. Polarities of the lighting and non-lighting voltages are inverted with respect to the non-selective voltages to thereby drive the liquid crystal panel. During a period (TC, tc) the selective voltage is not applied to any of the scanning electrodes and a compensating voltage is applied to each signal electrode in accordance with the number of variations in the polarities of the voltages applied to the respective signal electrode with respect to the non-selective voltages applied to the scanning electrodes during a constant period.
Patent EP-0450866-A2 (EP)
Inventor: AUSTIN KENNETH
IPC: H03H19/00
Filed: 1991-03-27
Abstract: This invention relates to semiconductor integrated circuits concerned with the realisation of different value capacitive components of a semiconductor chip by means of programming control arrangements. Programmable (IC) capacitors are implemented using a capacitive multiplier technique. Programmable capacitors comprise essentially three elements, a capacitor (C1) and one or two capacitor multipliers (M1 and M2). Capacitor (C1) is connected to the output of a first buffer circuit (B1) while programmable resistors (RP1 and RP2) are connected in series between the input and output of the buffer (B1), an output being taken from the junction between the first and second programmable resistors. By this arrangement of components, the ratio of the set values of the two programmable resistors (RP2 and RP1) determines the amount by which the capacitor (C1) value is multiplied. An overall effective capacitance value equal to (RP2/RP1) x C1 may be achieved. The final effective capacitance with two multipliers (M1, M2) approximates to (RP2/RP1) x (RP4/RP3) x C1. The value of programmable resistor RP1 is adjusted in accordance with an analogue reference signal (CCV) produced by a compensating circuit (Fig 2) to compensate for the manufacturing/processing variations of capacitor C1.
Patent EP-0453214-A2 (EP)
Inventor: YAMANA SHOZO
IPC: C01G1/00
Filed: 1991-04-16
Abstract: An oxide superconductor comprising yttrium, barium, copper and oxygen as major components and 0.1 to 5% by weight of platinum and/or palladium and having a critical temperature at which electrical resistance becomes zero of 77 K or higher with slight lowering in a high critical current density (Jc) in a magnetic field, can be produced by mixing raw materials containing these elements, and molding and firing the resulting mixture.
Patent EP-0465004-A2 (EP)
Inventor: COOPER BRIAN GUY
IPC: F01D5/18
Filed: 1991-05-30
Abstract: A gas turbine engine turbine aerofoil blade (10) includes an aerofoil portion (13) having pressure and suction flanks (20,21). The flanks (20,21) are internally interconnected by wall member (18) which cooperates with the flanks (20,21) to define first and second cooling passage portions (15,17) which are interconnected by a bend portion (16). The wall member (18) is locally thickened adjacent the bend portion (16). In the second cooling passage portion (17) the locally thickened wall member portion (19) progressively increases in thickness towards at least one of the flanks (20,21) so as to eliminate any acute angle between the flanks (20,21) and the thickened wall member (19) portion adjacent thereto.
Patent EP-0470833-A2 (EP)
Inventor: HAYASHI SHUICHI
IPC: C08G65/26
Filed: 1991-08-08
Abstract: A soft epoxy resin composition comprises an epoxy resin and a curing agent which is an alkyl amine alkylene oxide addition polymer having four or more carbon atoms in the alkylene oxide moiety.
Patent EP-0485100-A2 (EP)
Inventor: BYRON KEVIN CHRISTOPHER
IPC: H01S3/06
Filed: 1991-10-29
Abstract: A practical fibre Raman amplifier for soliton systems which employs conventional transmission fibre (4) and a pulsed pump source (3). The pump source only requires a relatively low mean power level but must be capable of providing sufficiently high peak output power pulses at intervals corresponding to the intervals between solitons whereby to amplify the latter. A conventional mode-locked laser diode source can achieve this at the requisite wavelength. The use of such a pulsed pump source is possible since the solitons have to be spaced at intervals approximately 8 to 10 times their pulse width in order to avoid interaction problems. Conventionally, Raman amplification requires high mean power continuous wave pump sources and suitable laser diode sources are not available at the requisite wavelengths.
Patent EP-0446171-A2 (EP)
Inventor: SANDER HANS JUERGEN
IPC: C08K5/17
Filed: 1991-02-27
Abstract: Chlorine-containing polymers are stabilised by addition of a stabiliser mixture containing     a) at least one sterically hindered amine,   b) at least one organic or inorganic zinc compound,   c) at least one organotin compound of the formulae A to D and   d) at least one 1,3-dicarbonyl compound of the formula E.   Polymer compositions of this type can be employed, for example, for hollow articles and as packaging films.